All of the internet-browsing populace of America has engaged in vigorous discussion about the pronunciation of the acronym (GIF). As I am unaware of an equivalent to the International Organisation of La Francophonie for American English, I defer to your administration to serve that purpose.
The people continue to argue (https://www.youtube.com/watch?v=9iafa959JvY as an example) without guidance and the inventor of the acronym has weighed in. The debate rages on.
End the circular debates - is GIF pronounced with a j (jump) or soft g (general) or a hard g (gift)?!